Which of the following groups is common to the majority of amino acids?

How many grams of magnesium metal will react completely with 8.3 liters of 5.5m hcl? show all work

If a gas has an initial pressure of 101kpa and a volume of 10l, then it expands to a volume of 20l, what is the new pressure?

Element j is 1s 2s 2p 3s . (i) how many unpaired electrons does j have? (ii) is j a good oxidizing agent or a reducing agent? (iii) state reason for the answer.